No, Iran probably wouldn't believe them, but if they get some money or something else from it that they can eat until the USA reneges then that's good enough. And probably whatever penalty will actually be enforced, the USA likes some decorum. If it isn't enforced then it's a good PR for Iran and anyone who didn't act as a guarantor for USA.

I'm arguing against the user saying Biden was left with no choice. I think Biden's regime had a good route towards fixing the mistake, and chose not to take it. I'm trying to say 'Trump' isn't to blame, but the USA, including the USA of today.